Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mbraun.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 18:35:21 UTC · ↺ Refresh
MX Hostnames
- mail.mbraun.de
MX Priorities
- mail.mbraun.de: 10
A / AAAA Records
- 81.169.145.91 ↩ w8b.rzone.de
- 2a01:238:20a:202:1091:: ↩ w8b.rzone.de
Mail Server IPs
- 81.24.72.26 ↩ mail.mbraun.de
SOA Record
Raw SOA
docks06.rzone.de hostmaster.strato-rz.de 2025120580 86400 7200 604800 300
Primary NS (mname)
docks06.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2025120580
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades03.rzone.de
docks06.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:81.24.64.0/20 ip4:91.26.67.82/32 ip4:83.138.82.20/32 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- brevo-code:e02fc5cfc560df9b5bd0c04fcde1ca59
- apple-domain-verification=KE8clQWYO69rwF1h
- KOGOVdrFMLTk+H9ZCqWvHavMFhqPWMR8UODFM4aTsMTFJX4Mz+w6JDN3fHk4rX6fUCRcq7/D2AL7XpWrVxEtWg==
- fVBiBJfZVoCjb/3R9un7IYxI8BptCjkTemJHmJggBiwqLvU4Q26JNUBMMgDm8OVYsxXHt7SijZEIgPbCl+lH+A==
- MS=ms31336018
- swisssign-check=1pdSTqgYJ24Uu9uZHd0pwUd5mns
- SPFv=spf1 ip4:81.24.64.0/20 ip4:91.26.67.82/32 ip4:83.138.82.20/32 include:spf.protection.outlook.com -all
- MS=ms30838550
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for mbraun.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits